symons



A l 630 502 M 31 1927' E. a. sYMoNs cnsnme msx med Jan.' 24. 192s 2 sheets-sheet 1 dlgs Patented May 31, 1927.

UNITED STATES EDGAR E. saisons, or Los ANeELEs, cALiEoEniA, Assieivon 'resin/ions BROTHERS COMPANY, `or iviiiiirAUirEE,4 WISCONSIN, A CORPORATION or sourir DAKOTA."

CRUSHING DISK.

Application filed January formed ot a plurality of sections, so that thatsection which wears out most rapidly may be replaced without throwing away the less rapidly wearing sections of the disk. Another object is to provide a disk in which the dcformative effect `of the stresses about the 'center of the disk, attendant upon se curing it to the crushing machine,` and the pressures directed against its outer edge, are reduced to a minimum. kAnother ob- 'ect is to urovide disk sections which are n-` l terchangeably usable upon either of the two opposed disk supporting heads. Other ob jects will appear from time to time in the course of the specification and claims.

1 illustrate my invention more 0r less diagrammatically in .the drawings wherein t Y Figure l is a section through the crushing head of a machine supplied with my type of disks;

Fi'uie 2 is a similar section showin@ a4 modified forni of disk and securing means; liigure Sis a detail section on an enlarged scale of a variant forni of securing means; and

Figure 4 is a diagrammatic view of the stresses and strains to which such a diskis exposed in the course of the norma-l operation of the crusher.

Like parts are indicated by like symbols throughout the specification and drawings. Ziheoperating, driving and controlling parts of my crushingmachine have been omitted from the drawings since no part of my invention.`

A is a hollow shaft adapted to be rotated from a power source not herein shown and B is a solid shaft, within the hollow shaft but inclined to it7 also adapted for rotation.

they form Mounted at the extremity of the shaftiA` is the socket member A1 having the spherical bearing surface A2 and terminating 1n the outwardly projecting flange A3.

accompanying 24, 1925. serial No. 4,375.

Securcdto the end of the shaft B is the member B1 having" a spherical bearing surface B2 provided for example with a spheri C-al`babbitii`ig B3@ Btis `a circumferential outwardly projecting flange,`the entire element having the conie concave bearing surface Badapted to `support the crushing I disk member C. C1 is any suitable disk engaging washer, or adapted to be securedL for example by means of' the bolt C2, to the end of the shaft B and thus' to hold the disk member C in position on the ball member B1. C3 C3 are inner `disk member,l

pins driven intothe apertures in the washer oi'disk member C1 adapted to receive the upstanding headsiof said pins C3.

Positioned against theoiiter ledge or corneil D of the flange A3 is the ring member D1 which has the inwardly projectingllange D2 adapted to limit the` inward movement of the ring member toward the crushing Zone. The ring Dl ,is `provided with outwardly projecting spring abutments D3 upon which the spiral springs D4 are mounted in pairs about the circumference of the ring. vD5 is an angle inenibei", the inner edge of which abuts against the inner corner of the flange A3. It is aperturedrto permit the passage of the holding bolts about which are spacing sleeves El compressed between the angle element D5 and the `circumferential` ring E2. E3 are removable spacing shiins.

Adapted to be held bythe bolts E is the Y centrally apertureiil disk supporting member (i, on which is mounted the outer disk nienrbei' Gl, which `may be heldin position for example by the outwardly screw threaded locking ring G2 andV the inwardly locking screw thi'uided'ring lf3. t The head G is pro# vided with an outwardly projecting flange or flanges G5 through which `piss the bolts LE.

G are lugs on the'ring whereby the ring Gi may be rotated in relation to the ring l2, or may be held against rotation when the ring G2 is rotated.` 'G7 are pockets in the ring G2 whereina wrench may be inserted to prevent its rotationwhen the ring G3 is being rotated. i' 7 In the structure as shown in Figure 2 H is a hollow main shaft rotatablymounted in the bearings H1. It is flangedas at I* Idie flange containing the spherical bear ify il, in which is`rotat`ably and oscillatably mount ed a bearing head or ball H* which supports the Alater described1 crushing disk and'which il if) lill) los' `loratecl in opposition to perforations inthe llange H2, said pertorations being pene` tratod by tliebolts l upon u'liirli are inounted any suitable spacing `members '14. -Tlie bolts are spaced coiiiparatively close together and they rigidly tie together the 'flange H2 and the supporting plate l; lt will be obA` served that-the plate l is'provided with ii forward bearing snrt'ace l Winch is in` wardly cupped or concave toward the ceu-1 trai aperture ot" theplate. About the outer periphery et the plate, andupon this bearing surface, is seated the disk element li? which i is provided Witliaii outer bearing ringI I2 ill abouti its outer edge and an inner bearing ring K2 about its inner edge. The inner peripli'ery of the element K terminates inan inclined or reduced portion KT shaped pieten ably `as slioivii in Figure l, although inany changes may be made in the specific fl'orni employed.

Positioned on oliteredge Ll inclined or tapered or shaped to overlie and 1to contorni to the inner re-` duced portion K7 ofthe outer disk element- K. Its inner edge is inclined or beveled or reduced asatiLz. i. c

Positioned in the central plate L is the securing sleeve or hollow plug M which is `provided at its inner end with ani outwardly projected circuinfereiitial ange lill overlying and conforming to1 the reduced iiiiieredge L2 ol' the disk element L'. i The op posed end of the block M is outwardly screwthreaded as at ML lin iiiesli `vvitli a secui ing ring M3 which is adapted, when rotated. to be seatedV against the annular bearingl surlace M", abouttlie central aperture of the plate I and to draw the disk firmly against the plate; 'Y

The disk elements K and L may be providedwilli holding lugs() adapted to prevent their rotation in relation'to the plate I by `their penetration into apertures or sockets i Olin its surface. i i i i The lieadH4 is provided with acoiicave, conical bearing. `surface l?, about "the" outer edge of Wliieli is positioned an outer disk eleiiient R, preferably `identical"With the opposed outer disk element K. f i

`Positioned Within it against tliesurface P is an inner disk S, the outer edge of which Penetrating such central i the plate l witliintlie` diskV iiieinber K isthe inner disk ineiiiber L, its` aperture of the` overlies and coii'li'orins to the inclined inner odg-ecol the disk ineiiiber R. It is held in positioii by any suitable central block or curing screw liil the details ot which` forni no i part of the present invention. y

-Figure El illustrates a slight variation in the securing means. The plug or sleeve M provided with tlierelatively extensive outwardly projecting 'Piange M10. ln order to prevent rotation ot' the sleeve lll` during `ro tation el' tlie lot-kring l'ri` in ii'iesh `vi'itli it, l provide `a` keyway M21 adapted to receive a key lill2 -ivliicli locks the sleeve ld against rotation with the platel, i

changes iniglit be iiizule in the size, shape, number `and dispositliii ol parts Without dcparting treni the spiritol my invention and that I wish my description and drawingsto be taken as iii a broadl sense illustrativey,`

rather than as liniitingiiie to the specific structure described and shown.

The use and operation of iiiy invention My invention relates to crushing disksotl generally concave ordisli-sliaped type, ivliicli bound a` lenticular crushing cliaiiibeiu` In general `practice these disks rare nianufac` tured troni manganese steel, which ivliilc eiitrenielyliard has the characteristic ol flowing or deforinmgunder pressure. llllien a singlepiece disk is employed,` the tendency ot the manganese to flow or` stretchb about the outer edge et' the disk prevailingly causes distortion ot'. the disk `and a very heavy 80 tratcd an operative device, nevertheless iiizinyc strain upon the inner edge olf the disk and i the securing means Wlierebylit `isseiaired to the supporting head. This tendency; is da graininaticallyillustrated in Figuren ln` Which the two rings, tand '[1 repi seiittlie inner aiidouteredges ol", 'the dis When the outer edge oit the disk stretches and ci:`

panels, the diaiiieterolf the disk is enlarged to the size represented `by a `The inner los llU

edge ot the disktends to be lifted to the position shown\iiildottedlines, o'. `The re y sult,`iii practice, is tlieibreakagei of `man)`- i d-isksory the pulling away ol the center of` the disk 'fi-oni the centrally disposed soeur-` ingnieans. 1 i i 'i i i I dispose of this difficulty by providing a multiple ring disk, having outer and inner ring portions, the iiuii'ibero'i' concentric ring iiieiiibei's varying to suit tliesize ot the disk and the needs olithe particular `usc to ,which it is put.` Obviously, since the disk :is a

ivliole` is made of ay plurality ol" annular scc` tiens, the stretchingottlie outer sections" does not causeiadditioniil pressure about the inner?,periphery ofthe-inner seetioii1 and accordingly does not `distort the disk as a Whole, or tend to pull tlie inner edge oli` the disk away jfioin the securing head.V

Y In practice the outer edges ol' the disks are subjected to much heavier Wear than the inner and are accordingly Worn down much more rapidly. However, in the use of a one piece disk the Whole disk must be scrapped when the outer edge is Worn down, even though the inner portion is still usable. In my improved disks I am able to replace the heavily Worn ont-er disk members more frequently than the less Worn inner ones, with a great resultant saving of metal.

l provide disk members which are adaptable for use with either head. Thus in Figure 2 tlie diskiiiei'nbers R and l may be enchangeably used on either head, and the disk members C and G1 in Figure l are identical in form. I may use single exchangeable disk ineinbers, such as C and (all, or I may employ a plurality of exchangeable ring sections. u

In shaping the multiple ring disks it is important that the joints be made relatively flat, for if the new outer ring sections, which are put in when the old ones Wear out, are to` be held in place by the partly Worn inner rings, no shoulder must be formed Which will obstruct the outward travel of the material as it is being crushed. It will be understood that. by shaping the inner disk members to overli-e the inner edges of the outer disk members I am able to hold the outer members in place Without additional securing means.

leferring to the inner disk members of the inner heads, shown to the left of Figures l and 2 l prefer to use the Washers C1 and S as crushing members and to form them of material as resistant to the crushingimpact as the outer disk members themselves. Similarly, l employ the forward faces of the sleeves M and G2 as part of the crushing disk and inust therefore `make them of as hard material as the rest of the disk. Since the rear of the sleeve has to be screw-threaded l may heat-treat or othervuise harden the crushing face of the sleeve, without hardening the rear of the rest of the sleeve. As an alternative I may, as shown in Figure 3, employ a4 sleeve of manganese steel or similar hard material about which is positioned the screw-threaded collar M2 of softer material. For example the soft collar may be set in the mould, and the manganese portion subsequently poured.

l claim:

l. The combination with a crushing disk for use with disk crushing machines, of a' securing sleeve having a forward crushing face conforming to and continuous with that of the disk, the outer edge of the securing sleeve being adapted to overlie the inner edge of the disk, said sleeve being of material of substantially the same hardness as the disk, and a body of softer material associated with the rear portion of Vsaid sleeve.

2. The combination With a crushing disk for use with disk crushing machines` of a securing sleeve having a forward face conforming' to and continuous with that of the disk, the outer edge of theysecui'ing sleeve` being adapted to overlie the` inner edge of the disk, the forward crushing face of the sleeve being formed of material substantially harder than that of the rear portion of t-lie sleeve.

A crusliinfr machines, comprising a plurality of concentric crushing ring sections, the outer edge of each ring being shaped to ovci'lie the inner edge of tliering nekt outermost, the inner and outer surfaces of the sections being generally continuous, and means, positioned on the non-ope ative face of an outer crushing ring adapted, in cooperation with an inner crushing ring, to hold said outer ring in fixed position upon the crushing head.

et. A crushing disk for use with disc crushing machines, comprising a .plurality of concentric crushing ring sections, the outer edge of each ring being shaped to overlie they inner edge of the ring next outermost, the inner and outer surfaces of the sections being generally continuous` the outer ring section being substantially thicker than the inner ring section, and means, positioned on the non-operative face of an outer crushing ring adapted, in cooperation With an inner crushing ring, to hold said outer ring in liXed position upon the crushing head. i

5. A crushing disk for use With disk crushing machines, coinprisingia yplurality of concentric'ciushing ringI sections, theinnerV and outei surfaces of the sections being generally continuous, the compound disk so formed increasing progressively in width from center to circumference, and means, positioned on the non-operative face of an outer crushing ring adapted, in cooperation with an inner crushing ring, to hold said outer ring in fixed position upon the crushing head.

G. A crushing disk for use with disk crushing machines, comprising a plurality of concentric crushing ring sections, the inner and outer surfaces of the sections being generally continuous, and ineans,positioned on the non-operative face of an outer crushing ring adapted, in cooperation with an inner crushing ring, to hold said outer ring in liked position upon the crushing head, the inner of said sections being adapted to direct a holding pressure upon the inner edge of the outer section.

7. A crushing disk for use with disk crushing machines, comprising a plurality of eccentric crushing ring sections, the inner andouter surfaces of the sections being generally continuous, the inner of said sec*- tions being adapted to direct a holding prescrushing disk for use with disk? sure upon the inner edge of the outer section, and additional means, positioned on the nonoperative 'iiaee oi: the outer section, adapted, in cooperation vwith such holding pressure ot the inner section, to hold the outer section in lined position on the crushing head.

8. A crushing disk for use with disk crushing inachines, comprising a plurality of concentric crushingring sections, the inner and outer surfaces ot the sections being `generally continuous, the inner of said sections being adapted to constrain the outer to fixed position upon the crushing niachine, and rotation preventing rearwardly projectinn` lugs associated with said sections.

S); A crushing disk for use` with disk crushing machines, comprising a plurality ot concentric crushing ring sections, the inner and outer surfaces of the sections being generally continuous, the inner of said sections heilig adapted to constrain the outer to lined position upon the crushing;` machine, and rotation preventing rearwardly projecting lugs associated with the outer of said sections.

10. A `concave crushing dish for use with a disk crushing machine having opposed concave crushing heads, comprising a plurality ot concentric rino; sections, the outer and inner surface of said ring sections being generally continuous, the inner being adapti ed to constrain the outer in position upon the crushing` head.

11. A concave crushing disk for use with a disk crushing machine having opposed concave crushing heads, `comprising a plurality of concentric ring sectionsy the outer and inner surface of said ring sectionsbeing generally continuous, the inner being adapted to constrain the outer in position `upon the crushing head, the compound dislt so formed increasing in thickness troni the center out- Wardly, 12. A a disk crushing machine, such dial; lacing bounded by a concave for fard crushing' face and a convex rear supporting tace, and coinprising aplurali@7 el ,concentric crushing ring sections, the inner and outei` surfaces ot the sections being generally contiinious.

13. A concave crushing disk 'for use with a` disk crushing machine, such disk lacing bounded by a concave forward crushing tace and a conifexrear supporting tace, and comw prising a plurality ot' concentric crushing ring sections, the inner and outer surfaces of' the sections being generally continuous, the outer edge of each ring being shaped to overlie the inner edge o'l' the ring next outerniost. u

let., A concave crushing disl; for use with a cisl; crushing machine, such disk lieing lxnuidedhlil a concave forward crushing tace and a convoi; rear supporting face, and conipruing a phirality of concentric crushing ring i sections, the inner and outer surfaces et' the sections being generally continuous, the outer edge oi each ring being shaped to overlie the inner edge ot the ring` next outermost, and rotation preventing lugs rearwardly projecting from the rear faces o1? the outer sections.

Signed at Los Angeles, county of Los Angeles and State of California, this 15 day ot January 1925. Y,

. EDGAR B. SYMONS.

concave crushing disk for use V"with `till 

